using Microsoft.EntityFrameworkCore; using Microsoft.EntityFrameworkCore.Design; namespace Jiaowu.Api.Infrastructure.Persistence; public sealed class AppDbContextFactory : IDesignTimeDbContextFactory { public AppDbContext CreateDbContext(string[] args) { var connectionString = Environment.GetEnvironmentVariable("ConnectionStrings__MySql") ?? "Server=localhost;Port=3306;Database=jiaowu;User=__design_time__;Password=__not_used__;"; var options = new DbContextOptionsBuilder() .UseMySQL(MySqlConnectionStringPolicy.ForApplication(connectionString)) .Options; return new AppDbContext(options); } }